No, your job
title doesn't matter in the slightest - it's what the necessary
skills are that counts. After all, employers can please themselves what they CALL something, so you can get 'shop assistant', 'sales representative', 'customer liaison operative', 'customer choice adviser', 'floor supervisor' and 'outlet executive' all meaning a person who stands in a store and takes your money, depending on how flattering the boss wants to be towards particular members of staff!
Therefore, regardless of your job title, put yourself in on the form as whichever ANZSCO heading has the description that best matches your skills as they are used in your present employment. You'll have to explain how it fits, but as long as you can do that, and it's using the skills from your qualification, you should be fine.
I think that should get you around 150 points, from what you have said. So you'd be selected at the next fortnight's pick.